Home / 399,418,232.64-551,197,910.40-223,206,228.96

Finding the Fourth Proportional to 399,418,232.64, 551,197,910.40 and 223,206,228.96

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Solution

The fourth proportional to 399,418,232.64, 551,197,910.40 and 223,206,228.96 is: 308,025,014.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,418,232.64 : 551,197,910.40 = 223,206,228.96 : x
  2. Step 2: Convert to fraction form
    399,418,232.64/551,197,910.40 = 223,206,228.96/x
  3. Step 3: Cross multiply
    399,418,232.64x = 551,197,910.40 × 223,206,228.96
  4. Step 4: Simplify right side
    399,418,232.64x = 123,030,806,991,015,968
  5. Step 5: Solve for x
    x = 123,030,806,991,015,968/399,418,232.64
  6. Step 6: Final answer
    x = 308,025,014.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.